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-70
99990 Note that if you add 11 to my answer you get a 6-digit number therefore it must be the largest 5-digit whole multiple of 11.
2
10,000
96532
-70
99990 Note that if you add 11 to my answer you get a 6-digit number therefore it must be the largest 5-digit whole multiple of 11.
2
-3
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
# The prime factors of 24 are 2, 2, 2, and 3. # The prime factors of 50 are 2, 5 and 5. # Therefore the Lowest Common Multiple of 24 and 50 is made up of 2, 2, 2, 3, 5 and 5. # 2 x 2 x 2 x 3 x 5 x 5 = 600 As 99,999 is the largest 5-digit number we need to divide 99,999 by 600 and then use the integer part of the result as follows. 99,999 ÷ 600 = 166.665 If we ignore the decimal portion of the number and multiply the 166 by 600 we get the largest multiple of 600 which is still a 5-digit number. 166 x 600 = 99,600
10,000
One two digit number that is not prime and is not a multiple of 2, 3, or 5 is 49. Another such number is 91.
When a number is a multiple of 5, the possible values for the ones digit are zero and five.
99
95 95/5=19
The largest 5-digit prime number is 99,991