Forty-two.
21 has 3 as a factor and is a multiple of 7, and so as 210, 105, and an infinite number of other numbers.
Any number that is not a multiple of 7.Any number that is not a multiple of 7.Any number that is not a multiple of 7.Any number that is not a multiple of 7.
42. 2*3*7=42.
If the number is even, it's divisible by 2. If the sum of the digits is a multiple of 3, the whole number is divisible by 3. If the last two digits are a multiple of 4, the whole number is divisible by 4. If the last digit is a 0 or a 5, the whole number is divisible by 5. If the number is even and divisible by 3, it's divisible by 6. If the last digit doubled subtracted from the rest is a multiple of 7, the whole number is divisible by 7. If the last three digits are a multiple of 8, the whole number is divisible by 8. If the sum of the digits is a multiple of 9, the whole number is divisible by 9. If the number ends in 0, it's divisible by 10.
It is: 39
The Least Common Multiple (LCM) for 3 5 7 8 is 840.
It could be: 4*7 = 28
Forty-two.
The number is 42 or any multiple of 42. All of the qualifiers mean the same thing : the number is a multiple, of 2, 3, and 7. Using the Least Common Multiple: 2 is prime, power is 1 3 is prime, power is 1 7 is prime, power is 1 2 x 3 x 7 = 42
Any number that is divisible by 2 and is a multiple of that particular number is called an even multiple. Ex: The even multiples of 7 are: 14, 28 etc
21
You can find the sum of 8, 5, and 7, and then multiple that sum by 3, which is equal to 60.
If the 2 digit number is a multiple of both 5 and 7 then it is a multiple of (5 x 7) which equals 35. The only even 2 digit number which is a multiple of 35 is, 2 x 35 = 70
21 has 3 as a factor and is a multiple of 7, and so as 210, 105, and an infinite number of other numbers.
The factors of 21 are 1, 3, 7, 21. The factors which are not a multiple of 7 are 1 and 3.
105 is an odd number, equal to 3 x 5 x 7. The smallest even multiple is 210, where 210/2 = 105.