1 x 3 x 3 x 7 x 7
It is: 21*21 = 441
21
3 x 3 x 7 x 7
As a product of its prime factors: 3*3*7*7 = 441
You just have to divide 441 by a few numbers until you get the same number you divided by. 441 divided by 10 is 44.1 so try 12. 441 divided by 12 is 36.75. Continuing this trial and error, you eventually find that 441/21 is equal to 21. Therefore 21 squared is 441; and the square root of 441 is 21. Or you just put in a calculator 441 and hit the squared button that looks like this: √
It is: 21*21 = 441
21 multiplies to 21 to make it 441
1764
1 x 441, 3 x 147, 7 x 63, 9 x 49, 21 x 2149 x 9, 63 x 7, 147 x 3, 441 x 1
3 x 3 x 7 x 7 = 441
21
Each of these factor pairs (multiply the numbers in parentheses) equals 441: (1, 441) (3, 147) (7, 63) (9, 49) (21, 21)
There are 3 feet in every 1 yard. So multiply 3 by 441 and you get the product 1323. Therefore, 1323 feet is equal to 441 yards.
3 x 3 x 7 x 7
441 / 2 is equal to 220.5
As a product of its prime factors: 3*3*7*7 = 441
As even numbers, none of 138, 172 or 432 can be prime.As the sum of the digits of the number is equal to 9, 441 cannot be prime.