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Oh, dude, let me break it down for you. So, 34515 is definitely divisible by 3 because if you add up all the digits (3 + 4 + 5 + 1 + 5), you get 18, which is divisible by 3. As for 9, well, since 3 divides into it, 9 will too because 9 is just 3 times 3. And 5? Well, it doesn't end in 0 or 5, so it's not divisible by 5. So, yeah, 34515 is divisible by 3 and 9, but not 5.
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ProfessorTo determine if 34515 is divisible by 3, we can add the digits together: 3+4+5+1+5 = 18, which is divisible by 3. Therefore, 34515 is divisible by 3. To check if it is divisible by 9, we would need to further reduce the sum of the digits to see if it is a multiple of 9. In this case, 1+8 = 9, which is a multiple of 9, so 34515 is divisible by 9. To check for divisibility by 5, we simply need to look at the last digit, which is 5 in this case. Since 5 is a factor of 34515, it is divisible by 5.
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Can you explain why a number that is divisible by 9 is also divisible by 3?
Three is a factor of nine.
A number is divisible by 6 if it is divisible by what numbers?
2 and 3Today, people don't explain why a number has to be divisible by 2 and 3 to be divisible by 6 or how it works.
Explain why the product of any four consecutive integers is divisible by 24?
At least one of the four will be divisible by 4. One other will be divisible by 2 (but not by 4) One other will be divisible by 3. Hence the product will be divisible by 4 x 2 x 3 = 24.
Is 1430061 divisible by 3 explain?
Yes, it is. The digital root of 1430061, that is, the sum of all its digits is 1+4+3+0+0+6+1 = 15 The digital root of 15 is 1+5 = 6 which is divisible by 3. So 1430061 is divisible by 3.
Explain why 21 is not a prime number?
21 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 3. (You can check this by adding the digits of the number: 2 + 1 = 3. If the sum of the digits is divisible by 3, the number is also divisible by 3.) Therefore, 21 is a composite number.
