The Abhidharmakośabhāṣya of Vasubandhu (316-396), a Sanskrit work on Buddhist philosophy, says that the second-century CE philosopher Vasumitra said that "placing a wick (Sanskrit vartikā) on the number one (ekāṅka) means it is a one while placing the wick on the number hundred means it is called a hundred, and on the number one thousand means it is a thousand".
ðɪ ɐ bˈiː ˈeɪtʃ ˈaɪ dˈiː ˈeɪtʃ ɐ ˈɑːɹ ˈɛm ɐ kˈeɪ ˈoʊ ˌɛsɐkjˈuːt ɐ bˈiː ˈeɪtʃ ˌeɪmˈækɹˌɑːn lˌɛɾɚwˈʌnˈiːsˈɪksθɹˈiː wˈaɪ ɐ ʌv vˌæsuːbˈændhuː θɹˈiːhˈʌndɹɪd sˈɪkstiːn dˈæʃ θɹˈiːhˈʌndɹɪd nˈaɪnti sˈɪks, ɐ sˈænskɹɪt wˈɜːk ˌɔn bˈuːdɪst fɪlˈɑːsəfi, sˈɛz ðætðə sˈɛkəndsˈɛntʃɚɹi sˌiːˈiː fɪlˈɑːsəfɚ vˈæsuːmˌɪtɹə sˈɛd ðˈæt "plˈeɪsɪŋ ɐ wˈɪk sˈænskɹɪt vˈɑːɹɾɪkə ɔnðə nˈʌmbɚ wˈʌn ˈiː kˈeɪ ˌeɪmˈækɹˌɑːn lˌɛɾɚwˈʌnˈiːfˈoːɹfˈaɪv kˈeɪ ɐ mˈiːnz ɪɾ ɪz ɐ wˈʌn wˌaɪl plˈeɪsɪŋ ðə wˈɪk ɔnðə nˈʌmbɚ hˈʌndɹɪd mˈiːnz ɪɾ ɪz kˈɔːld ɐ hˈʌndɹɪd, ænd ɔnðə nˈʌmbɚ wˈʌn θˈaʊzənd mˈiːnz ɪɾ ɪz ɐ θˈaʊzənd".