21 has only two factors , 3 and 7
Both are prime numbers, divisible only by itself and 1
So the third number must be .... 1
1 x 3 x 7 = 21
( Of course this only applies, if we are talking about integers ;-) )
Any number can be multiplied by 21
Any number can be multiplied to get the answer 441. For example 5 can be multiplied by 88.2 If the question was which number can be multiplied by itself, the answers are: -21 and +21
3*7 = 21
21 and 5
21
This is no set of three consecutive numbers that when multiplied equal 387.
Any number can be multiplied by 21
Any number can be multiplied to get the answer 441. For example 5 can be multiplied by 88.2 If the question was which number can be multiplied by itself, the answers are: -21 and +21
3*7 = 21
-21
2 when multiplied by 21 = 42
21 and 5
21
1 x 21, 3 x 7
10.5 x 2=21
The three numbers that equal 21 are 7, 7, and 7. This is because when you add 7 + 7 + 7, you get 21. In mathematical terms, this can be represented as 7 x 3 = 21, where 7 is multiplied by 3 to achieve the total of 21.
21 x 3