69 is divisible by these numbers: 1, 3, 23, 69.
47 is a prime number and is divisible by 1 and 47 only. 51 is divisible by 1, 3, 17, 51.
621 is divisible by these numbers: 1, 3, 9, 23, 27, 69, 207, 621.
{| |- | 78 69 60 51 42 33 |}
Oh, dude, you're really testing my math skills here. Let me grab my calculator... just kidding. The sum of the prime numbers between 51 and 69 is 53 + 59 + 61 + 67, which equals 240. So, like, if you were wondering if you could impress your friends with this fact at a party, you totally can.
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both are composite numbers 51 is divisible by 1,3,17,51 and 91 by 1,7,13,91
345 is divisible by: 1 3 5 15 23 69 115 and 345.
51 is not divisble by two because it is an odd number. All odd numbers are not divisible by 2 (such as 11,13,33,35). On the other hand, all even numbers are divisible by 2.divisble means that it can be divided by 2 and the answer is a whole number
61 is a prime number. 49 is not a prime number as it is divisible by 7. 51 is not a prime number as it is divisible by 3.
1, as are all numbers. oh, and 17.
All but 28.