A multiple of seven is any number of sevens multiplied together. In this light, it could be looked at as a series. Here's the first few numbers: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84 and so on. It is (7), (7+ 7), (7 + 7 + 7), (7 + 7 + 7 + 7), (7 + 7 + 7 + 7 + 7) and so on. Or it is (1 x 7), (2 x 7), (3 x 7), (4 x 7), (5 x 7), (6 x 7) and so on, which is where the expression "multiples of seven comes from.
Chat with our AI personalities
seven is not a multiple of 714 - it is a factor
105
any multiple of 7
The LCM of 3 4 and 7 is 84.
If you take the units digit and double it then subtract it from the rest of the number then the difference is divisible by seven. You may have to do it several times. 574 57-8=49 So it is a multiple of 7.