1) Find the least common multiple of 3, 4, and 5.
2) Divide the greatest possible 6-digit number (999,999) by this number.
3) Discard the decimal part, and multiply the result again by this greatest common factor.
30 is the lcm of the prime numbers of 2, 3 and 5
Zero
2*(x + 21) = 3*abs(x - 5) => x = -5.4 or x = 57.
10, and all its multiples.
45
300
The GCF is 1.
Four of them.
120
30 is the lcm of the prime numbers of 2, 3 and 5
Zero
15
60
110
The GCF is 1.
2*(x + 21) = 3*abs(x - 5) => x = -5.4 or x = 57.
76 is divisable by 2, but not 5. How come? 2 x 38 = 76 76/2 = 38. Meaning, if you add 2+2+2+...+2 38 times, you will get 76. Contrarily, you can't take a whole number, multiply it by 5 and get 76 because all multiples of five end with a 0 or 5. Any number is divisable by 2 when it is an even number. Any number is divisable by 5 when it is a number ending with 0 or 5.