prove that a six-digit number of the form abcabc is divisible by 3 distinct primes

Using :Decimal numeral system and place value to solve question from Gmat test
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prove that a six-digit number of the form abcabc is divisible by 3 distinct primes 1:10

[Gmatpre]

prove that a six-digit number of the form abcabc is divisible by 3 distinct primes