Table of Contents
What is the divisibility of 27?
Divisibility rules for numbers 1–30
| Divisor | Divisibility condition |
|---|---|
| 27 | Sum the digits in blocks of three from right to left. |
| Subtract 8 times the last digit from the rest. | |
| Subtract the last two digits from 8 times the rest. | |
| 28 | It is divisible by 4 and by 7. |
How do you know if a number is divisible by 27?
The simplest such combination is 9 + 9 + 9= 27; and we find that 999 is a multiple of 27; indeed, 999 = 27 × 37. Next in simplicity we have the combination 1 + 8 + 9 + 9 = 27. And 1899 turns out to be not divisible by 27!
What is the divisibility of 9999?
Divisibility of 9999 The number 9,999 is divisible by 3 and 9.
What is the divisibility of 7000?
Divisibility of 7000 The number 7,000 is divisible by 2, 4, 5, 7 and 8.
What is a single digit numbers divided by 7000?
7; 7000/7 = 1000 hence 7000 divisible by 7. 8; Last three digits of 7000, that is, 000, are divisible by 8. Hence 7000 is divisible by 8.
What are the factors of any prime number?
A prime number is a counting number that only has two factors, itself and one. Counting numbers which have more than two factors (such as 6, whose factors are 1, 2, 3, and 6), are said to be composite numbers. The number 1 only has one factor and usually isn’t considered either prime or composite.
How to calculate the divisibility of a number by 2?
Divisibility by 2 1 376 (The original number) 2 37 6 (Take the last digit) 3 6 ÷ 2 = 3 (Check to see if the last digit is divisible by 2) 4 376 ÷ 2 = 188 (If the last digit is divisible by 2, then the whole number is divisible by 2)
How to calculate the divisibility of the number 627?
627: 62 − 7 = 55 = 5 × 11. Add the last digit to the hundreds place (add 10 times the last digit to the rest). The result must be divisible by 11. 627: 62 + 70 = 132: 13 + 20 = 33 = 3 × 11. If the number of digits is even, add the first and subtract the last digit from the rest.
When is a number divisible by 1000 in math?
A number is divisible by 1000 if it ends in “000”. For example, 450,000 is divisible by 1000.
When does the divisibility rule of 8 apply?
The divisibility rule of 8 states that if the last three digits of the given number are zeros or they form a number that is divisible by 8, then the given number is divisible by 8. The divisibility rule of 9 says that a number is divisible by 9 if the sum of its digits is divisible by 9.