0
Add your answer:
Earn +20 pts
Is 627 a prime number?
Sum of digits of 627 = 6+2+7 = 15 15 is exactly divisible by 3. Hence, 627 is divisible by 3. So, it is not a prime number
What is the divisiblity rule for 15?
A number is divisible by 15 if it is divisible by 5, and by 3. For example, 165 is divisible by 15, since it ends in 5, and the sum of its digits is divisible by 3.
How do you know if the number is divisible by 15?
All numbers divisible by 5 (of which 15 is a multiple) have a final digit of 0 or 5. All numbers divisible by 3 (of which 15 is a multiple) have the sum of the digits totalling 3 or a multiple of 3. Therefore, a number is divisible by 15 if the sum of its digits total 3 or a multiple of 3 and its final digit is 0 or 5. Example : 32085 ; 3 + 2 + 0 + 8 + 5 = 18 which is divisible by 3. Final digit 5. This number is divisible by 15. (32085 ÷ 15 = 2139) 7420 : 7 + 4 + 2 + 0 = 13. This number is not divisible by 15.
Is 24207 divisible by 9?
Nope - in order for a number to be divisible by 9, the sum of its digits must also be divisible by 9. In this case, the digits 2+4+2+7=15.
Is 34215 divisible by 3?
Any number whose sum of its digits are equal to a multiple of 3, is divisible by 3. In this instance, the sum of the digits of the number 34215 is equal to 15, which is divisible by 3, and therefore the number is divisible by 3.
Is 627 a prime number?
Sum of digits of 627 = 6+2+7 = 15 15 is exactly divisible by 3. Hence, 627 is divisible by 3. So, it is not a prime number
What is the divisiblity rule for 15?
A number is divisible by 15 if it is divisible by 5, and by 3. For example, 165 is divisible by 15, since it ends in 5, and the sum of its digits is divisible by 3.
How do you know if the number is divisible by 15?
All numbers divisible by 5 (of which 15 is a multiple) have a final digit of 0 or 5. All numbers divisible by 3 (of which 15 is a multiple) have the sum of the digits totalling 3 or a multiple of 3. Therefore, a number is divisible by 15 if the sum of its digits total 3 or a multiple of 3 and its final digit is 0 or 5. Example : 32085 ; 3 + 2 + 0 + 8 + 5 = 18 which is divisible by 3. Final digit 5. This number is divisible by 15. (32085 ÷ 15 = 2139) 7420 : 7 + 4 + 2 + 0 = 13. This number is not divisible by 15.
Is 24207 divisible by 9?
Nope - in order for a number to be divisible by 9, the sum of its digits must also be divisible by 9. In this case, the digits 2+4+2+7=15.
Is 34215 divisible by 3?
Any number whose sum of its digits are equal to a multiple of 3, is divisible by 3. In this instance, the sum of the digits of the number 34215 is equal to 15, which is divisible by 3, and therefore the number is divisible by 3.
What does pattern stitch multiple 15 mean in a knitting pattern?
It means make the piece as wide as you need to, but be sure that your total number of stitches is exactly divisible by 15.
How do you know that a number is divisible by 15?
A number that is divisible by 15 is divisible both by 5 and 3 A number is divisible by 5 if it ends with 0 or 5 A number is divisible by 3 if the sum of its digits is divisible by 3 e.g. 4035 is divisible by 15 as it ends with a 5 and 4+0+3+5=12 which is divisible by 3
The least number of 5 digits which is excately divisible by 4610 and 15 is?
13830 = 4610*3 and 15*922
When can a number divided by 3?
If the digits of a number add up to a multiple of 3, then the number can be divided by 3. For example, the digits of 852 add up to 8 + 5 + 2 = 15. Since 15 is divisible by 3, 852 is divisible by 3.
Is 96 a multiple of 3?
Yes it is. you can always check - by adding the digits together. If the resulting number is divisible by 3, then the original number is too. In this example - 9+6=15... 15 will divide by three exactly therefore so will 96.
Is 15 264 divisible by 3?
Yes it is - it's 5088 exactly.
What is a palindrome that has three digits and is divisible by thirty-five?
525 = 35 x 15
